e2e: add cephfs test for sc, secret via helm
e2e: add cephfs test for sc, secret via helm

add cephfs test for validating storageclass and
secret deployment via helm.

Signed-off-by: Yug <0bdbd163d0c315ea6160e8172ff8eceaf795a460@gmail.com>

ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi